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annotate Sources/StorageArea.cpp @ 212:2db6c1f6417f

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documented orthanc.RegisterStorageArea()
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 03 Jul 2024 14:39:25 +0200
parents c8de83fe7faa
children 3678a028f1f6
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1 /**
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2 * Python plugin for Orthanc
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3 * Copyright (C) 2020-2023 Osimis S.A., Belgium
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4 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium
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71d305c29cfa updated year to 2024
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5 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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21
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22 #include "StorageArea.h"
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23
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24 #include "PythonHeaderWrapper.h"
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25
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26 #include "../Resources/Orthanc/Plugins/OrthancPluginCppWrapper.h"
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27 #include "PythonString.h"
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29
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30 static PyObject* createCallback_ = NULL;
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31 static PyObject* readCallback_ = NULL;
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32 static PyObject* removeCallback_ = NULL;
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33
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34
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35 static OrthancPluginErrorCode RunCallback(PythonLock& lock,
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36 PyObject* callback,
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37 const PythonObject& args,
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38 const std::string& name)
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39 {
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40 PythonObject result(lock, PyObject_CallObject(callback, args.GetPyObject()));
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41
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42 std::string traceback;
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43 if (lock.HasErrorOccurred(traceback))
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44 {
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45 ORTHANC_PLUGINS_LOG_ERROR("Error in the Python " + name + " callback, traceback:\n" + traceback);
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46 return OrthancPluginErrorCode_Plugin;
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47 }
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48 else
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49 {
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50 return OrthancPluginErrorCode_Success;
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51 }
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52 }
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54
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55 static OrthancPluginErrorCode StorageCreate(const char *uuid,
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56 const void *content,
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57 int64_t size,
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58 OrthancPluginContentType type)
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59 {
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60 try
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61 {
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62 if (createCallback_ == NULL)
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63 {
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64 throw OrthancPlugins::PluginException(OrthancPluginErrorCode_InternalError);
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65 }
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67 PythonLock lock;
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69 PythonObject args(lock, PyTuple_New(3));
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70
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71 PythonString str(lock, uuid);
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72 PyTuple_SetItem(args.GetPyObject(), 0, str.Release());
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73 PyTuple_SetItem(args.GetPyObject(), 1, PyLong_FromLong(type));
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74 PyTuple_SetItem(args.GetPyObject(), 2, PyBytes_FromStringAndSize(reinterpret_cast<const char*>(content), size));
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75
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76 return RunCallback(lock, createCallback_, args, "StorageCreate");
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77 }
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78 catch (OrthancPlugins::PluginException& e)
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79 {
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80 return e.GetErrorCode();
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81 }
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82 }
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83
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84
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85 static OrthancPluginErrorCode StorageRead(void **content,
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86 int64_t *size,
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87 const char *uuid,
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88 OrthancPluginContentType type)
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89 {
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90 try
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91 {
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92 if (readCallback_ == NULL)
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93 {
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94 throw OrthancPlugins::PluginException(OrthancPluginErrorCode_InternalError);
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95 }
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96
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97 PythonLock lock;
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98
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99 PythonObject args(lock, PyTuple_New(2));
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100
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101 PythonString str(lock, uuid);
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102 PyTuple_SetItem(args.GetPyObject(), 0, str.Release());
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103 PyTuple_SetItem(args.GetPyObject(), 1, PyLong_FromLong(type));
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104
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105 PythonObject result(lock, PyObject_CallObject(readCallback_, args.GetPyObject()));
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106
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107 std::string traceback;
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108 if (lock.HasErrorOccurred(traceback))
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109 {
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110 ORTHANC_PLUGINS_LOG_ERROR("Error in the Python StorageRead callback, traceback:\n" + traceback);
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111 return OrthancPluginErrorCode_Plugin;
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112 }
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113 else if (!PyBytes_Check(result.GetPyObject()))
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114 {
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115 ORTHANC_PLUGINS_LOG_ERROR("The Python StorageRead callback has not returned a byte array as expected");
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116 return OrthancPluginErrorCode_Plugin;
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117 }
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118 else
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119 {
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120 char* pythonBuffer = NULL;
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121 Py_ssize_t pythonSize = 0;
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122 if (PyBytes_AsStringAndSize(result.GetPyObject(), &pythonBuffer, &pythonSize) == 1)
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123 {
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124 ORTHANC_PLUGINS_LOG_ERROR("Cannot access the byte buffer returned by the Python StorageRead callback");
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125 return OrthancPluginErrorCode_Plugin;
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126 }
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127 else
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128 {
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129 if (pythonSize == 0)
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130 {
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131 *content = NULL;
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132 *size = 0;
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Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
133 }
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
134 else
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
135 {
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
136 *content = malloc(pythonSize);
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
137 *size = pythonSize;
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
138 if (*content == NULL)
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
139 {
068551520123 New Python function: "orthanc.RegisterStorageArea()"
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diff changeset
140 return OrthancPluginErrorCode_NotEnoughMemory;
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
141 }
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
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142
068551520123 New Python function: "orthanc.RegisterStorageArea()"
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143 memcpy(*content, pythonBuffer, pythonSize);
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
144 }
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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145
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
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146 return OrthancPluginErrorCode_Success;
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parents:
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147 }
068551520123 New Python function: "orthanc.RegisterStorageArea()"
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parents:
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148 }
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parents:
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149 }
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
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150 catch (OrthancPlugins::PluginException& e)
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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151 {
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
152 return e.GetErrorCode();
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153 }
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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154 }
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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155
068551520123 New Python function: "orthanc.RegisterStorageArea()"
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parents:
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156
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
157 static OrthancPluginErrorCode StorageRemove(const char *uuid,
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
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158 OrthancPluginContentType type)
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
159 {
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
160 try
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
161 {
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
162 if (removeCallback_ == NULL)
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
163 {
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
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164 throw OrthancPlugins::PluginException(OrthancPluginErrorCode_InternalError);
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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165 }
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
166
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
167 PythonLock lock;
068551520123 New Python function: "orthanc.RegisterStorageArea()"
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parents:
diff changeset
168
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
169 PythonObject args(lock, PyTuple_New(2));
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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170
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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171 PythonString str(lock, uuid);
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
172 PyTuple_SetItem(args.GetPyObject(), 0, str.Release());
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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173 PyTuple_SetItem(args.GetPyObject(), 1, PyLong_FromLong(type));
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
174
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
175 return RunCallback(lock, removeCallback_, args, "StorageRemove");
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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176 }
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
177 catch (OrthancPlugins::PluginException& e)
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
178 {
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
179 return e.GetErrorCode();
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
180 }
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
181 }
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
182
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
183
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
184 PyObject* RegisterStorageArea(PyObject* module, PyObject* args)
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
185 {
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
186 // The GIL is locked at this point (no need to create "PythonLock")
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
187
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
188 PyObject* a = NULL;
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
189 PyObject* b = NULL;
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
190 PyObject* c = NULL;
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
191
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
192 if (!PyArg_ParseTuple(args, "OOO", &a, &b, &c) ||
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
193 a == NULL ||
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
194 b == NULL ||
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
195 c == NULL)
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
196 {
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
197 PyErr_SetString(PyExc_ValueError, "Expected three callback functions to register a custom storage area");
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
198 return NULL;
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
199 }
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
200 else if (createCallback_ != NULL ||
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
201 readCallback_ != NULL ||
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
202 removeCallback_ != NULL)
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
203 {
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
204 PyErr_SetString(PyExc_RuntimeError, "Cannot register twice a custom storage area");
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
205 return NULL;
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
206 }
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
207 else
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
208 {
171
c8de83fe7faa removed deprecation warnings
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 166
diff changeset
209 ORTHANC_PLUGINS_LOG_INFO("Registering a custom storage area in Python");
79
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
210
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
211 OrthancPluginRegisterStorageArea(OrthancPlugins::GetGlobalContext(),
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
212 StorageCreate, StorageRead, StorageRemove);
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
213
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
214 createCallback_ = a;
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
215 Py_XINCREF(createCallback_);
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
216
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
217 readCallback_ = b;
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
218 Py_XINCREF(readCallback_);
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
219
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
220 removeCallback_ = c;
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
221 Py_XINCREF(removeCallback_);
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
222
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
223 Py_INCREF(Py_None);
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
224 return Py_None;
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
225 }
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
226 }
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
227
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
228
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
229 void FinalizeStorageArea()
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
230 {
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
231 PythonLock lock;
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
232
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
233 if (createCallback_ != NULL)
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
234 {
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
235 Py_XDECREF(createCallback_);
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
236 }
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
237
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
238 if (readCallback_ != NULL)
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
239 {
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
240 Py_XDECREF(readCallback_);
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
241 }
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
242
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
243 if (removeCallback_ != NULL)
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
244 {
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
245 Py_XDECREF(removeCallback_);
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
246 }
068551520123 New Python function: "orthanc.RegisterStorageArea()"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
247 }